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Pleuronectiformes (Flatfishes) >
Pleuronectidae (Righteye flounders) > Pleuronectinae
Etymology: Isopsetta: Greek, isos = equal + Greek, psetta, grouper.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin démersal; océanodrome (Ref. 51243); profondeur 20 - 425 m (Ref. 6793). Temperate; 66°N - 32°N
Eastern Pacific: Bristol Bay in the southeastern Bering Sea and Amchitka Island (Aleutian Islands) to Ventura, California, USA.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 21.0  range ? - ? cm
Max length : 55.0 cm TL mâle / non sexé; (Ref. 2850); âge max. reporté: 11 années (Ref. 6885)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 78 - 92; Épines anales: 0; Rayons mous anaux: 58 - 69; Vertèbres: 39 - 42. Dorsal origin above eye. Caudal rounded. Pectoral small, bluntly pointed.
Body shape (shape guide): short and / or deep.
Common in shallow water on soft, silty bottom. Moves into shallow water in summer and to deeper water in winter (Ref. 6885). Spawning adults exhibit north-south migrations (Ref. 6885). Feeds on chaetopod marine worms, young herring, shrimps, and sand dollars (Ref. 6885). A tasty food fish, sometimes marketed (Ref. 2850). Also used for mink food (Ref. 2850).
Vinnikov, K.A., R.C. Thomson and T.A. Munroe, 2018. Revised classification of the righteye flounders (Teleostei: Pleuronectidae) based on multilocus phylogeny with complete taxon sampling. Molecular phylogenetics and evolution, 125:147-162. (Ref. 122998)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur; pêche sportive: oui
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 1.1 - 7.6, mean 4.7 °C (based on 300 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00449 - 0.01852), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.6 ±0.54 se; based on food items.
Generation time: 4.2 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Résilience (Réf.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.26; tmax=11; tm=2).
Vulnérabilité de la pêche (Ref.
59153): Low to moderate vulnerability (35 of 100).
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Nutriments (Ref.
124155): Calcium = 35.2 [13.5, 60.7] mg/100g; Iron = 0.281 [0.139, 0.548] mg/100g; Protein = 18.1 [15.6, 20.1] %; Omega3 = 0.367 [0.180, 0.767] g/100g; Selenium = 20.8 [10.7, 45.2] μg/100g; VitaminA = 6.76 [1.59, 30.94] μg/100g; Zinc = 0.387 [0.261, 0.583] mg/100g (wet weight); based on
nutrient studies.